Revenue Recognition (Tables)

9 Months Ended

Jan. 31, 2021

Revenue from Contract with Customer [Abstract]

Summary of Contract Balances

	January 31, 2021		April 30, 2020
	(in thousands)
Deferred revenue, current	32,023		34,227
Deferred revenue, long-term	—		—
Total deferred revenue	$	32,023	$	34,227

Schedule of Revenue by Geography

The Company’s revenue by geography is as follows:

	Three Months Ended January 31,				Nine Months Ended January 31,
	2021		2020		2021		2020
	(in thousands)				(in thousands)
Revenues:
Domestic	$	23,668	$	24,902	$	70,467	$	69,076
International	4,015		5,698		12,375		17,117
	$	27,683	$	30,600	$	82,842	$	86,193